Materials Map

Discover the materials research landscape. Find experts, partners, networks.

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The Materials Map is an open tool for improving networking and interdisciplinary exchange within materials research. It enables cross-database search for cooperation and network partners and discovering of the research landscape.

The dashboard provides detailed information about the selected scientist, e.g. publications. The dashboard can be filtered and shows the relationship to co-authors in different diagrams. In addition, a link is provided to find contact information.

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The Materials Map is still under development. In its current state, it is only based on one single data source and, thus, incomplete and contains duplicates. We are working on incorporating new open data sources like ORCID to improve the quality and the timeliness of our data. We will update Materials Map as soon as possible and kindly ask for your patience.

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in Cooperation with on an Cooperation-Score of 37%

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Publications (28/28 displayed)

  • 2023Broadband scattering properties of articular cartilage zones and their relationship with the heterogenous structure of articular cartilage extracellular matrix5citations
  • 2021Infrared fiber-optic spectroscopy detects bovine articular cartilage degeneration14citations
  • 2020Comparison of water, hydroxyproline, uronic acid and elastin contents of bovine knee ligaments and patellar tendon and their relationships with biomechanical properties20citations
  • 2019T2* and quantitative susceptibility mapping in an equine model of post-traumatic osteoarthritis: assessment of mechanical and structural properties of articular cartilagecitations
  • 2019T2* and quantitative susceptibility mapping in an equine model of post-traumatic osteoarthritis: assessment of mechanical and structural properties of articular cartilage15citations
  • 2019Arthroscopic determination of cartilage proteoglycan content and collagen network structure with near-infrared spectroscopy34citations
  • 2019Effects of body mass on microstructural features of the osteochondral unit: A comparative analysis of 37 mammalian species16citations
  • 2018Quantitative susceptibility mapping of articular cartilage: ex vivo findings at multiple orientations and following different degradation treatments23citations
  • 2017Contrast-enhanced computed tomography enables quantitative evaluation of tissue properties at intrajoint regions in cadaveric knee cartilage22citations
  • 2017Corrigendum to “Multimodality scoring of chondral injuries in the equine fetlock joint ex vivo” [Osteoarthritis Cartilage 25 (5) (2017 May) 790–798] (S1063458416304666), (10.1016/j.joca.2016.12.007))1citations
  • 2017Tissue viscoelasticity is related to tissue composition but may not fully predict the apparent-level viscoelasticity in human trabecular bone – an experimental and finite element study26citations
  • 2016Differences in acoustic impedance of fresh and embedded human trabecular bone samples - scanning acoustic microscopy and numerical evaluation7citations
  • 2015Ultrasound backscattering is anisotropic in bovine articular cartilage7citations
  • 2015Inter-individual changes in cortical bone three-dimensional microstructure and elastic coefficient have opposite effects on radial sound speed4citations
  • 2014Deformation of articular cartilage during static loading of a knee joint - experimental and finite element analysis104citations
  • 2013New disposable forehead electrode set with excellent signal quality and imaging compatibility24citations
  • 2007Effect of human trabecular bone composition on its electrical properties45citations
  • 2006Interrelationships between electrical properties and microstructure of human trabecular bone40citations
  • 2006T2 relaxation time mapping reveals age- and species-related diversity of collagen network architecture in articular cartilage104citations
  • 2006Collagen network primarily controls poisson's ratio of bovine articular cartilage in compression133citations
  • 2005Prediction of mechanical properties of human trabecular bone by electrical measurements52citations
  • 2005Improvement of arthroscopic cartilage stiffness probe using amorphous diamond coating8citations
  • 2004Prediction of biomechanical properties of articular cartilage with quantitative magnetic resonance imaging116citations
  • 2003Structure-function relationships in enzymatically modified articular cartilage118citations
  • 2003Electrical and dielectric properties of bovine trabecular bone - Relationships with mechanical properties and mineral density50citations
  • 2002Ultrasonic characterization of articular cartilagecitations
  • 2002Comparison of the equilibrium response of articular cartilage in unconfined compression, confined compression and indentation369citations
  • 2000Quantitative MR microscopy of enzymatically degraded articular cartilagecitations

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Chart of shared publication
Mirhashemi, Arash
1 / 1 shared
Paakkari, Petri
1 / 1 shared
Kienle, Alwin
1 / 1 shared
Foschum, Florian
1 / 1 shared
Nippolainen, Ervin
2 / 2 shared
Kafian-Attari, Iman
1 / 1 shared
George, Akuroma
1 / 1 shared
Bergmann, Florian
1 / 1 shared
Afara, Isaac
5 / 5 shared
Zimmermann, Boris
1 / 2 shared
Kohler, Achim
1 / 2 shared
Saarakkala, Simo
3 / 5 shared
Virtanen, Vesa
1 / 1 shared
Shaikh, Rubina
1 / 1 shared
Solheim, Johanne
1 / 1 shared
Tafintseva, Valeria
1 / 1 shared
Rieppo, Lassi
2 / 3 shared
Torniainen, Jari
1 / 1 shared
Ristaniemi, A.
1 / 1 shared
Stenroth, L.
1 / 1 shared
Finnilä, M. A. J.
1 / 1 shared
Korhonen, R. K.
5 / 6 shared
Paakkonen, T.
1 / 1 shared
Visser, Jetze
2 / 5 shared
Nykänen, Olli
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Te Moller, Nikae C. R.
1 / 1 shared
Nissi, Mikko J.
2 / 3 shared
Ketola, Juuso H.
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Sarin, Jaakko K.
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Mancini, Irina A. D.
2 / 3 shared
Brommer, Harold
2 / 5 shared
Tiitu, Virpi
4 / 4 shared
Malda, Jos
2 / 39 shared
Leskinen, Henri
1 / 1 shared
René Van Weeren, P.
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Sarin, J. K.
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Leskinen, H.
1 / 2 shared
Brommer, H.
2 / 3 shared
Visser, J.
1 / 4 shared
Mancini, I. A. D.
2 / 2 shared
Nissi, M. J.
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Tiitu, V.
1 / 2 shared
Te Moller, N. C. R.
1 / 1 shared
Van Weeren, P. R.
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Ketola, J. H.
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Malda, J.
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Nykänen, O.
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Van Weeren, P. René
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Rieppo, L.
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Van Rijen, M. H. P.
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Weinans, H.
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Pouran, B.
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Kik, M.
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Braganca, F. M. Serra
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Shmueli, Karin
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Kolehmainen, Ville
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Snyder, Brian D.
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Joukainen, Antti
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Jurvelin, Jukka S.
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Kokkonen, Harri T.
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Honkanen, Juuso T. J.
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Stewart, Rachel C.
1 / 1 shared
Grinstaff, Mark W.
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Puhakka, P. H.
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Inkinen, S. I.
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Argüelles, D.
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Saarakkala, S.
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Jurvelin, J. S.
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Tanska, P.
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Ojanen, X.
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Isaksson, H.
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Magnusson, S. P.
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Malo, M. K. H.
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Koistinen, A. P.
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Väänänen, S. P.
1 / 1 shared
Grassi, L.
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Ribel-Madsen, S. M.
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Isaksson, Hanna
1 / 17 shared
Inkinen, Satu I.
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Ojanen, Xiaowei
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Malo, Markus K. H.
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Virén, Tuomas
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Liukkonen, Jukka
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Eneh, Chibuzor T. M.
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Salo, J.
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Mononen, M. E.
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Halonen, K. S.
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Mervaala, Esa
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Myllymaa, Sami
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Myllymaa, Katja
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Lappalainen, Reijo
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Lepola, Pasi
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Hukkanen, Taina
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Hakulinen, M. A.
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Lammi, M. J.
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Sierpowska, J.
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Lappalainen, R.
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Day, J. S.
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Kiviranta, I.
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Laasanen, M. S.
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Nieminen, M. T.
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Rieppo, J.
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Rieppo, Jarno
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Korhonen, Rami K.
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Kiviranta, Panu
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Julkunen, Petro
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Voutilainen, Tanja
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Nieminen, Miika T.
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Helminen, Heikki J.
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Laasanen, Mikko S.
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Silvennoinen, Johanna
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Kovanen, Vuokko
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Hyttinen, Mika M.
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Sierpowska, Joanna
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Helminen, H. J.
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Nieminen, H. J.
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Hirvonen, J.
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Hakumäki, Juhana M.
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Co-Authors (by relevance)

  • Mirhashemi, Arash
  • Paakkari, Petri
  • Kienle, Alwin
  • Foschum, Florian
  • Nippolainen, Ervin
  • Kafian-Attari, Iman
  • George, Akuroma
  • Bergmann, Florian
  • Afara, Isaac
  • Zimmermann, Boris
  • Kohler, Achim
  • Saarakkala, Simo
  • Virtanen, Vesa
  • Shaikh, Rubina
  • Solheim, Johanne
  • Tafintseva, Valeria
  • Rieppo, Lassi
  • Torniainen, Jari
  • Ristaniemi, A.
  • Stenroth, L.
  • Finnilä, M. A. J.
  • Korhonen, R. K.
  • Paakkonen, T.
  • Visser, Jetze
  • Nykänen, Olli
  • Te Moller, Nikae C. R.
  • Nissi, Mikko J.
  • Ketola, Juuso H.
  • Sarin, Jaakko K.
  • Mancini, Irina A. D.
  • Brommer, Harold
  • Tiitu, Virpi
  • Malda, Jos
  • Leskinen, Henri
  • René Van Weeren, P.
  • Sarin, J. K.
  • Leskinen, H.
  • Brommer, H.
  • Visser, J.
  • Mancini, I. A. D.
  • Nissi, M. J.
  • Tiitu, V.
  • Te Moller, N. C. R.
  • Van Weeren, P. R.
  • Ketola, J. H.
  • Malda, J.
  • Nykänen, O.
  • Van Weeren, P. René
  • Rieppo, L.
  • Van Rijen, M. H. P.
  • Weinans, H.
  • Pouran, B.
  • Kik, M.
  • Braganca, F. M. Serra
  • Shmueli, Karin
  • Kolehmainen, Ville
  • Snyder, Brian D.
  • Joukainen, Antti
  • Jurvelin, Jukka S.
  • Kokkonen, Harri T.
  • Honkanen, Juuso T. J.
  • Stewart, Rachel C.
  • Grinstaff, Mark W.
  • Puhakka, P. H.
  • Inkinen, S. I.
  • Argüelles, D.
  • Saarakkala, S.
  • Jurvelin, J. S.
  • Tanska, P.
  • Ojanen, X.
  • Isaksson, H.
  • Magnusson, S. P.
  • Malo, M. K. H.
  • Koistinen, A. P.
  • Väänänen, S. P.
  • Grassi, L.
  • Ribel-Madsen, S. M.
  • Isaksson, Hanna
  • Inkinen, Satu I.
  • Ojanen, Xiaowei
  • Malo, Markus K. H.
  • Virén, Tuomas
  • Liukkonen, Jukka
  • Eneh, Chibuzor T. M.
  • Salo, J.
  • Mononen, M. E.
  • Halonen, K. S.
  • Mervaala, Esa
  • Myllymaa, Sami
  • Myllymaa, Katja
  • Lappalainen, Reijo
  • Lepola, Pasi
  • Hukkanen, Taina
  • Hakulinen, M. A.
  • Lammi, M. J.
  • Sierpowska, J.
  • Lappalainen, R.
  • Day, J. S.
  • Kiviranta, I.
  • Laasanen, M. S.
  • Nieminen, M. T.
  • Rieppo, J.
  • Rieppo, Jarno
  • Korhonen, Rami K.
  • Kiviranta, Panu
  • Julkunen, Petro
  • Voutilainen, Tanja
  • Nieminen, Miika T.
  • Helminen, Heikki J.
  • Laasanen, Mikko S.
  • Silvennoinen, Johanna
  • Kovanen, Vuokko
  • Hyttinen, Mika M.
  • Sierpowska, Joanna
  • Helminen, H. J.
  • Nieminen, H. J.
  • Hirvonen, J.
  • Hakumäki, Juhana M.
OrganizationsLocationPeople

article

Interrelationships between electrical properties and microstructure of human trabecular bone

  • Day, J. S.
  • Jurvelin, J. S.
  • Töyräs, Juha
  • Hakulinen, M. A.
  • Kiviranta, I.
  • Weinans, H.
  • Sierpowska, J.
  • Lappalainen, R.
Abstract

Microstructural changes, such as reduction of trabecular thickness and number, are characteristic signs of osteoporosis leading to diminished bone strength. Electrical and dielectric parameters might provide diagnostically valuable information on trabecular bone microstructure not extractable from bone mineral density measurements. In this study, structural properties of human trabecular bone samples (n = 26) harvested from the distal femur and proximal tibia were investigated using the computed microtomography (microCT) technique. Quantitative parameters, e.g. structural model index (SMI) or trabecular bone volume fraction (BV/TV), were calculated. In addition, the samples were examined electrically over a wide frequency range (50 Hz-5 MHz) using a two-electrode impedance spectroscopy set-up. Relative permittivity, loss factor, conductivity, phase angle, specific impedance and dissipation factor were determined. Significant linear correlations were obtained between the dissipation factor and BV/TV or SMI (|r| ≥ 0.70, p < 0.01, n = 26). Principal component analyses, conducted on electrical and structural parameters, revealed that the high frequency principal component of the dissipation factor was significantly related to SMI (r = 0.72, p < 0.01, n = 26). The linear combination of high and low frequency relative permittivity predicted 73% of the variation in BV/TV. To conclude, electrical and dielectric parameters of trabecular bone, especially relative permittivity and dissipation factor, were significantly and specifically related to a trabecular microstructure as characterized with microCT. The data gathered in this study constitute a useful basis for theoretical and experimental work towards the development of impedance spectroscopy techniques for detection of bone quality in vitro or in special cases of open surgery.

Topics
  • density
  • impedance spectroscopy
  • microstructure
  • mineral
  • phase
  • dielectric constant
  • strength
  • dissipation factor